Características simbióticas e fenotípicas de Azorhizobium doebereinerae, microissimbiote de Sesbania virgata

Florentino, Ligiane Aparecida; Moreira, F. M. S.

doi:10.1590/s0100-67622009000200003

Cited by 10 publications

(9 citation statements)

References 10 publications

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“…In general, nodulation in S. virgata is always related to high symbiosis effectiveness (Tables 1 and 2), which is in agreement with the results of Gonçalves & Moreira (2004) and Florentino & Moreira (2009). Another species belonging to the genus Sesbania (S. sesban) also establish symbiosis only with a limited range of microsymbionts in a small percentage of soil samples and its symbiosis was always highly efficient, indicating that these species (S. virgata and S. sesban) have similar symbiotic characteristics (Bala et al, 2003 a,b).…”

Section: Sesbania Virgatasupporting

confidence: 91%

“…The density of the NFLNB populations capable of nodulating S. virgata is low at this distance from the host. Florentino & Moreira (2009) have previously reported that the microsymbiont did not occur in soil samples collected 20 and 40 m away from S. virgata, and that the distance of influence of this species on its microsymbiont may be smaller than 10 m.…”

Section: Sesbania Virgatamentioning

confidence: 91%

“…One of these isolates was obtained from a S. virgata nodule. Inoculation in S. virgata and the total protein profile were used because, according to previous studies (Gonçalves & Moreira, 2004;Moreira et al, 2006;Florentino & Moreira, 2009), the protein profiles and the symbiosis efficiency of all A. doebereinerae isolates were highly similar to each other and to those of strain BR 5401 T .…”

Section: Identification Of the Fast-growing Alkali Producing Isolatesmentioning

confidence: 99%

“…A. johannae) were found to have similar symbiotic behavior in monoxenic conditions, capable of nodulating few hosts and forming efficient symbiosis with only S. virgata (Gonçalves & Moreira, 2004). The presence of A. doebereinerae in several ecosystems in the south of Minas Gerais State was found to be related to the occurrence of S. virgata, as this microsymbiont was found only in soil samples collected close to the radicular system of S. virgata (Florentino & Moreira, 2009).…”

Section: Introductionmentioning

confidence: 96%

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Sesbania virgata stimulates the occurrence of its microsymbiont in soils but does not inhibit microsymbionts of other species

Florentino¹,

Guimarães²,

Rufini³

et al. 2009

Sci. agric. (Piracicaba, Braz.)

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The legume species Sesbania virgata establishes a specific and efficient symbiosis with Azorhizobium doebereinerae. Previous studies have shown that A. doebereinerae occurrence correlates to the presence of S. virgata. This work aimed to evaluate the occurrence of A. doebereinerae and of other nitrogen-fixing Leguminosae-nodulating bacteria (NFLNB) in soil samples collected adjacent to and 10 m away from the stems of five S. virgata plants in pasture areas. Symbiotic characteristics of isolates from these NFLNB populations were also studied. S. virgata and the four promiscuous legume species Leucaena leucocephala, Macroptilium atropurpureum, Phaseolus vulgaris and Vigna unguiculata were inoculated with soil samples to trap A. doebereinerae and other NFLNB. NFLNB capable of inducing nodulation in at least one of these legumes were found in all samples. M. atropurpureum was the most promiscuous species, as it trapped the highest number of NFLNB cultural types from soil suspensions. The other species were less promiscuous in the following order: V. unguiculata, P. vulgaris, and L. leucocephala. Isolates of the promiscuous legumes were classified into seven cultural groups. One of these groups, isolated from all promiscuous species, showed fast-growth alkali-reaction in culture medium (like Azorhizobium); it was identified as Cupriavidus. This is the first report of symbiosis of Cupriavidus with Papilionoideae species. The symbiotic efficiency of promiscuous hosts with NFLNB varied, but it was always less than that of controls with mineral nitrogen or an inoculant strain. S. virgata was efficiently nodulated only by A. doebereinerae, which occurred mainly in samples collected close to the plant stem, corroborating a high stimulus by its host species. A high diversity of NFLNB occurs as saprophytes close to the S. virgata root system.

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Section: Sesbania Virgatasupporting

confidence: 91%

Section: Sesbania Virgatamentioning

confidence: 91%

Section: Identification Of the Fast-growing Alkali Producing Isolatesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

See 2 more Smart Citations

Sesbania virgata stimulates the occurrence of its microsymbiont in soils but does not inhibit microsymbionts of other species

Florentino¹,

Guimarães²,

Rufini³

et al. 2009

Sci. agric. (Piracicaba, Braz.)

Self Cite

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“…Biological nitrogen fixation (BNF) has been proved essential for the sustainability of Brazilian agriculture, given the fact that it supplies nitrogen to crops with low economic cost and reduced environmental impact, improving its agronomic efficiency (Hungria & Bohrer, 2000;Lima et al, 2011;Florentino & Moreira, 2009).…”

Section: Introductionmentioning

confidence: 99%

Development of cv. BRS Novaera cowpea inoculated with rhizobium recommended for pigeonpea

Guimarães¹,

Cardinal²,

Bonfim-Silva³

et al. 2015

Científica

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The cultivation of cowpea (Vigna unguiculata) has grown in Brazil, especially in the Cerrado of Mato Grosso, where it is produced in off-season. The association of cowpea plants with rhizobia has provided much of the nitrogen required by this culture. This study aimed at evaluating the development of cowpea inoculated with rhizobia recommended for pigeonpea (Cajanus cajan). The experiment was conducted at the Federal University of Mato Grosso, University Campus Rondonópolis-MT under greenhouse conditions. The experimental design was completely randomized with three treatments and four replications. The treatments were composed by commercial inoculant recommended for pigeonpea (composed by the combination of strains BR2003 and BR2801), nitrogen (without inoculation and application of 50 mg N dm-3) and a control (without inoculation and nitrogen fertilization). Plants height, SPAD index, number of pods, number of grain, number of nodules, length of pods, dry weight of nodules, dry grain, dry weight of shoot and relative efficiency of the strains were analyzed. Cowpea show significant response for inoculation in all variables, with increase in production equal or superior to the treatment with nitrogen fertilizer. These results indicate the inoculant recommended for pigeonpea has potential use for cowpea under the tested conditions.

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Potential Promising Set of Plant–Microbe Interactions for the Revegetation of Open-Pit Mining and Smelting Areas in Brazil

et al. 2016

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Características simbióticas e fenotípicas de Azorhizobium doebereinerae, microissimbiote de Sesbania virgata

Cited by 10 publications

References 10 publications

Sesbania virgata stimulates the occurrence of its microsymbiont in soils but does not inhibit microsymbionts of other species

Sesbania virgata stimulates the occurrence of its microsymbiont in soils but does not inhibit microsymbionts of other species

Development of cv. BRS Novaera cowpea inoculated with rhizobium recommended for pigeonpea

Potential Promising Set of Plant–Microbe Interactions for the Revegetation of Open-Pit Mining and Smelting Areas in Brazil

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